add a fass fuel system they r about 700 hundred lil pricy but they do a dream 4 ur truck. it is also a water seperater. and if u do it or have som1 else do it by pass the lift pump the one with the filter on the side of the motor. that thing is a piece of crap. with the fass system by passing the lift pump you will run 17 psi at idol and 16 psi on full load. it will save or make ur new injection pump last so much longer i have 140000 on my truck no issues with injection pump. its worth the money truck will even run so much cleaner and better. cleans the diesel real good